implement texture decoding

src/Cafe/HW/Latte/Renderer/Metal/MetalMemoryManager.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "Cafe/HW/Latte/ISA/LatteReg.h"
+
+class MetalMemoryManager
+{
+public:
+    MetalMemoryManager() = default;
+
+    void* GetTextureUploadBuffer(size_t size)
+    {
+        if (m_textureUploadBuffer.size() < size)
+        {
+            m_textureUploadBuffer.resize(size);
+        }
+
+        return m_textureUploadBuffer.data();
+    }
+
+private:
+    std::vector<uint8> m_textureUploadBuffer;
+};